Home / 225,489.28-311,158.08-124,885.12

Finding the Fourth Proportional to 225,489.28, 311,158.08 and 124,885.12

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Solution

The fourth proportional to 225,489.28, 311,158.08 and 124,885.12 is: 172,331.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,489.28 : 311,158.08 = 124,885.12 : x
  2. Step 2: Convert to fraction form
    225,489.28/311,158.08 = 124,885.12/x
  3. Step 3: Cross multiply
    225,489.28x = 311,158.08 × 124,885.12
  4. Step 4: Simplify right side
    225,489.28x = 38,859,014,159.77
  5. Step 5: Solve for x
    x = 38,859,014,159.77/225,489.28
  6. Step 6: Final answer
    x = 172,331.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.